MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs, with one pointing to a raw IP address, suggesting it's part of a link farm designed to redirect users. The PDF structure and heuristic firings strongly suggest it's a phishing or malware distribution lure, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://woykoff.hu/upload/file/29792309812.pdf In PDF document text
- http://somersetcountybar.org/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/41883420662.pdfIn PDF document text
- http://zulassungsdienst4you.de/bilder/file/67291268216.pdfIn PDF document text
- https://implantsdentairesdesmoulins.com/upload/editor/file/66877214601.pdfIn PDF document text
- https://happyfun.tw/uploads/files/202109070824031516.pdfIn PDF document text
- http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb0b58029d---biruvumijefitidido.pdfPDF link annotation
- http://klawiatury-foliowe.pl/_data/file/84144141020.pdfIn PDF document text
- http://softtox.com/new/userfiles/file/puvikusirimimopoz.pdfIn PDF document text
- https://rasathantrananotech.com/ckfinder/userfiles/files/81062538012.pdfIn PDF document text
- https://naucharts.com/ckfinder/userfiles/files/daginigam.pdfIn PDF document text
- https://gea99.com/ckfinder/userfiles/files/bekixogigo.pdfIn PDF document text
- https://walnutcreekguide.com/wysiwygfiles/file/limoxewa.pdfIn PDF document text
- http://101eyewear.com/luutru/files/nukapadupalozubugekimi.pdfIn PDF document text
- http://tc-muehlacker.de/data/tcmuehlacker/userfiles/file/kizodumorunidat.pdfIn PDF document text
- http://keifo.ru/ckfinder/userfiles/files/43345006428.pdfIn PDF document text
- http://mjacz.cz/soubory/files/76826697968.pdfIn PDF document text
- https://kapokcmassage.com/uploads/files/202109091902158285.pdfIn PDF document text
- http://thestarbusan.net/FileData/ckfinder/files/20210910_6A48E2012871FE58.pdfIn PDF document text
- http://www.bongbansaigon.com/uploads/files/99428256322.pdfIn PDF document text
- http://ntvietnga.com/upload/files/viramok.pdfIn PDF document text
- http://chothuexeninhbinh.net/data/dulieu/files/43804757099.pdfIn PDF document text
- http://arcomproltd.com/userfiles/file/jupasoxamataj.pdfIn PDF document text
- http://abacusnancy.com/userfiles/file/55981415672.pdfIn PDF document text
- http://smwiarus.pl/ckfinder/userfiles/files/mefosunafimufufotofulam.pdfIn PDF document text
- http://lso-msm.fr/userfiles/file/rosikilonofizadixiwul.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=installer+apps+androidPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d604.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD604 | 17116 bytes |
SHA-256: 5cc8b2e8e991146d6c8dae7593f3b471b4659db09dc15ef7832160ed5b9c343f |
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font_01_sfnt_off00010258.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10258 | 10336 bytes |
SHA-256: 427cd0e18f2cfcfc9e3bd9581c02021b29f6c75065483519336f5fcee0e263ad |
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font_02_sfnt_off000119bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119BF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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